Stop motion for spinning frames



May 15, 1923. 1,455,]1'33 C. E. PEARCE STOP MOTION FOR SPINNING FRAMES Filed Feb. 9, 1922 Patented May l5, i923 CHARLES E. PEARCE, 0F COOLEEIEEE, NORTH 631130111111 1, IiF -JIGNUR OF ONE-EIGHTH TO JOHN S. STRO'MVD, ONE-FOURTH TO CHART WV. All

=.L 'IDER, AND ONE-FOURTH TO JAIVIES W. ZACHARY, OE COOLEEMEE, NORTH C..EOLINl-l..

STOP lEOTIUN FOR SPINNING FRAIvIES.

itpplication filed February 9, M22.

To all whom it may concern:

Be it known that 1, CHARLES E. PEARCE, a citizen of the United States of America, and a resident of Cooleemee, county of Davie, and State of North Carolina, have invented certain new and useful Improvements in Stop Motions for Spinning Frames, of which the following 1s a lull and clear specification.

The object of this invention is to provide a simple mechanism which will not only stop the operation 01 the machine, but will also lower the ring-rail automatically, upon the completion of the windings of the bobbins, as more fully hereinafter set forth.

In the drawing annexed- Fig. 1 is a plan view of a part of a spin ning frame, enough of the spinning-frame being; Shown to illustrate the manner in which my invention is applied thereto;

Fig. 2 is a view partly in side elevation and partly in section of the mechanism shown in Fig. 1;

Fig. 8 is a detail view of part of the tripping mechanism.

In the drawing annexed, 5 designates the usual traverse screw, on which runs the usual traverse-nut 6, which nut is connected by chain 7 andother mechanism, not shown, with the ring-rail. This traverse-screw is, as usual, carried by an oscillating bar 8 which is moved intermittently up and down by the usual mechanism, not shown, the screw 5 being stepped around with each reciprocation 01 the bar 8 by means of the usual ratchet mechanism 9.

Attached to the usual nut 6 is an upstanding arm 10, to the upper end of which is pivotally connected :1 trip-rod 11, the free end of this rod 11 being slotted at 12 for pivotal and slidable connection with the upper end of the cranlnarm 13 carried by a rock-shaft 14, said trip-rod 11 being provided with adjustable stops 15-15 at either side of the connection with the cranharm 13, to thereby give the rod 11 a limited slidmg action with reference to the crank-arm 13. The roclnshat't 14 is provided with a tinuousl v Serial No. 535,235.

depending crank-arm 16 which at its lower end has a pivot-and-slot connection with a trip-pin 17 slidably mounted in the frame. ii hen this trip-bolt 17 is projected in the position shown in Fig. 3, its end is in position to support a weight 18, which when released puts the stopping mechanism into operation, as hereinafter set fortln in starting, the nut 6 is, as usual, at the inner end of the traverse-screw and the stop 15 is against or close to the upper end of the crank-arm 13. As the bobbins are wound in the usual manner and the nut 6 travels toward the outer end of the screw, the triprod 11 will be carried along with it until the stop 15 engages the upper end of the crank 13 and thus rocks shaft 142, carrying trip-pin 17 from under the weight and thus allowing the same to drop, thereby putting the stop mechanism hereinafter described into operation. To restore the parts of this tripping mechanism to operative position, the traverse-screw is reversed by means of a hand-cranltor otherwise, in the usual mannor, to run back the nut 6, whereupon the stop 15f will engage the upper end of crankarm 13 and thus return the trip-pin 17 to operative position. The oscillation of the traverse bar 8 on its pivot 11 will, of course, impart oscil ation to the parts 10 and 11, but this will be an idle movement of these parts 10 and 11, since these parts do not function until either one or the other of the stops iii-15 makes contact with the crankarm 13.

The weight 18 is slidably attached to a substantially radial arm 19 affixed to one face of a mutilated bevel-gear 20. Meshingwith this gear 20 is pinion 21 which is continuouslv rotated during the operation of the spinningatrame from the same source of power that operates the spinning-tranre. For operating this bevel-pinion 21, l have shown a train of gearing 22 to connect up its shaft to the traverse gear on the spinning-frame or other shaft that is conrotated during the running of the machine. While the machine is in operation and weight 18 is resting upon the trippin 17, the bevel-pinion 21 will be opposite the mutilated part of the gear 20 and will,

therefore, have no rotative effect upon the same. ll hen, however, the trip-pin is withdrawn by the mechanism above described. the weight will drop and will rotate gear 20 far enough to bring its teeth into mesh with the bevel pinion 21. From that point, the power for operating the stopping mecha nism will be derived from said gear 21.

The shaft on which gear 20 is aflixed is provided with a segment 23 which, when the gear is rotated counter-clockwise, will engage the teeth of the sliding rack 24- and, through the medium thereof, stop the machine. As one means for stopping the machine. I have shown a pivoted lever 25 connected at one end to the rack-bar and. at its other end with rod 26, which is connected to the stopping-and-startinp; lever 27. In this instance, the hand-lever 27 is part of the mechanism for shifting the belt From the tight to the loose pulley, but it will be understood that this: lever may be a switchlever, it the machine be driven electrically. The rod 26 has a slidable connection with the lever 25, and the inner end of the rod 26 is provided witha nut-stop 28. In Fig. 2,

the niits 27 and 26 are shown in full lines in StOllplIlQ position and in dotted lines in running' position.

lVhen the weight falls and the segment is brought into mesh with the rack 24-, the power derived through the bevel-pinion 21 will rotate the segment to the left tar en on -h to stop the machine which point the st merit will leave the rack and will lie at the side opposite from that where it normally lies. The weight will also have made about half a turn. When the parts stop in this position the bevel-pinion will still be in mesh with the teeth on the gear 20 and it is obvious that the friction oi the parts will prevent the weight 18 from reversing the rotation of the parts. The parts will remain in this position until the machine is as in start ed by throwing over the hand-lever 27. whereupon the bevel-gear 21 will again begin to rotate and thus rotate gear 20 counter-clockwise The rotation of gear 20 will continue until the pinion 21 aga n reaches the blank space in the Q0211. whereupon the gear 20 will be released from the pinion 2i. By the time this gear 20 is released trom the pinion 21. the weight 8 will have been carried over far enough to rest upon the pre viously-restored trip-pin 1?.and the parts will be again in position to repeat the opera tion when the traverse mecl'ianis n again trips pin 17. It will thus be noted that the same source of power that drives the spinning machine operates the stopping mechanism and. iurther. that the same source of power restores the stopping mechanism to operative position when the spinning-"frame is first started up again.

ln the usual spinning-frame, a hand-lever 29 is provided for lowering the ring-rail, the mechanism operated by the shaft 30 of this lever being not shown and the ring-rail also being; omitted from my drawing. In the usual machine, the lever 29 is swung downwardly to lower the ring-rail, and alatch is usually employed to lock the ring-rail down. To perform this operation automatically, when the machine is stopped by my mechanism, l provide the following simple mechanism: I attach to the shaft or the gear 20 an upstanding arm 31 and connect this arm by means of chain 32 with an upstanding arm 3 atlixed to the shaft 30. lWhen the sto ping mechanism operates, the first action of this mechanism will be to pull the lever 33 downwardly toward the left far enough to lower the ring-rail and permit it to he latched down by the usual latching mechanism. The latching; occurs just as the arm 31 passes over center (i. e, a line drawn from the axis of the shaft carrying said arm and the connection between the chain and the arm After arm 31 thus passes over center. the chain 32 is slacked. Then, after the hohhinshave been changed and the ring ail latch released. the parts 31, 32 and will be restored to operative position when the machlne 1s again started up through the medium of the control lever 27.

I do not desire to be understood as ,limiting myself? to the precise details of construe tion and arrangement shown, as variations and modifications therefrom may be made without departing from the spirit and scope of my invention and improvements. I therefore reserve the right to all such variations and modifications as properly fall within the scope of my invention and improvements and the terms of ihGfOllOWinQ' claims.

lVhat I claim is: i

1. In COlYllJlDEllllOIl with a spinningframe, a stepping; mechanism. and a tripping means for said stopping mechanism operated from the usual nut ot the swinging traverse screw of the builder mechanism.

2. In. combination with a spinning-frame.

a stopping mechanisn'i. and a tripping means for said stopping mechanism operated from the usual traversescrmv of the builder mechanism. said means being; pivotally connected to the usual traverse-nut on the swinging traverse-screw. kl LY In combination with a spinning-frame. a stopping); mechanism. and a tripping means for said stopping mechanism operated from the usual traverse-screw of the builder mech- .RINSYH. said means being connected to the usual traverse-nut on the traverse-screw. devices *bQlTlQPIOYlClGCl whereby the running back of the traverse-nut will restore the tripping means to normal.

4. In combination with a spinning-frame, a tripping means operated by the builder mechanism, and a stopping mechanism put into action by said tripping means, said stopping means embodying devices which complete the stopping operation and simul taneously lower the rin -rail through the same source of power which operates the spinning-frame.

5. In combination with a spinning-frame, a tripping means operated by the builder mechanism, a stopping mechanism put into action by said tripping means, said stopping means embodying devices which complete the stopping operation through the same source of power which operates the spinning-frame, said stopping devices embodying a driving pinion and a mutilated gear, and means for bringing them into mesh when the tripping means is operated.

6. In combination with a spinning-frame,

a tripping means operated by the builder mechanism, and a stopping mechanism put into action by said tripping means, said stopping means embodying devices which complete the stopping operation through the same source of power which operates the spinning-frame, said stopping mechanism embodying a gravitating weight adaptedto be released by the tripping means to put the power means into action.

7. In combination with a spinning-frame, a tripping means operated by the builder mechanism, and a stopping mechanism put into action by said tripping means, said stopping means embodying devices which complete the stopping operation through the same source of power which operates the spinning-frame, said stopping mechanism embodying a continuously-running driving pinion, a mutilated driven gear, and a weight attached to said gear and normally supported by a part of the tripping means and adapted when released by the tripping means to actuate the mutilated gear into mesh with said pinion, for the purpose set forthv 8. In combination with a spinning-frame, a tripping means operated by the builder mechanism, and a stopping mechanism put into action by said tripping means, said stopping means embodying devices which complete the stopping operation through the same source of power which operates the spinningframe. said stopping mechanism embodying a slidable rack, a segment engaging said rack, and means actuated by the rack for stopping the mechanism.

9. In combination with a spinning-frame, tripping means operated by the builder mechanism, and a stopping mechanism put into action by said tripping means, said stopping means embodying devices which complete the stopping operation through the same source of power which operates the spinning-frame, means being also provided for automatically lowering the ring-rail when the stoppi g mechanism is operated.

10. In combination with spinning-frame, a stopping mechanism operated by the same power that operates the spinning-frame, and an automatic tri iping mechanism, said stopping mechanism embodying a rotary shaft, a ring-rail-lowering mechanism embodying a rock-shaft adapted when rocked to lower the ring-rail, and flexible means connecting these two shafts, for the purpose set forth.

11. In combination with a spinning-frame, a stopping mechanism and an automatic tripping mechanism therefor, said stopping mechanism embodying a gear continuously driven from the spinning-frame mechanism, a mutilated gear having its mutilated part normally opposite the aforesaid gear, means whereby when the tripping mechanism operates the mutilated gear will be put into mesh with said continuously running gear, and means whereby a partial rotation of the mutilated gear will stop the spinning-frame and upon completion of the rotation thereof will start it again.

12. In combination with a spinning-frame, a stopping mechanism and a tripping mechanism therefor embodying a slidable tripping pin and means operated from the traverse-screw of the builder mechanism for moving said pin alternately in opposite directions.

13. In combination with a spinning frame, an automatic stopping mechanism operated from the same source of power that operates the spinning-frame, and an automatic trippingmechanism for said stopping mechanism, said stopping mechanism embodying devices whereby during its operation the spinning-frame will be stopped and also the stopping mechanism will be automatically restored to normal operative position.

14. In a spinning-frame, a rock-shaft associated with the usual ring-rail lowering mechanism and provided with an arm, a rotary shaft provided with an arm connected to the aforesaid arm by a flexible connection, as a chain, means operated from said rotary shaft for stopping the operation of the spinning-frame, means for driving said rotary shaft irom the same source of power that drives the spinning nnlchine. and automatic tripping means for putting said last-named means into operation when the bobbin-wind ing is completed, whereby when the spinning-frame is stopped the aforesaid arms and flexible connection will operate the ringrail lowering means.

15. In a spinning machine, a builder mechanism embodying a traverse-screw mounted on a swinging frame and having lnechanisinadapted to be released when said atrayerse-nut, a tripping; means operated pin is actuated in one direction and to be from this nut and embodying a rod pivotheld out of action \y'lien it is actuatedin the 10 ally connected to the nut a roeking ineinbei' opposite direction. actuated alternately in opposite directions In testimony whereof I hereunto afiix my from said 1'0d,a tripping-pin actuated by said sigliatiu'e.

rocking member, and an automatic stopping 7 CHARLES E. PEARCE. 

